How did alexander and his successors spread greek culture through the hellenistic world?

Apex plz i’m almost done if i get this all right

How did african americans the union during the civil war? a. by serving as representatives in congress b. by enlisting in the military to fight c. by organizing massive slave revolts in the south d. by negotiating for peace with the confederacy

How did the treaty of versailles cripple germany after world war one ?